Electrical Activity of the Mouse Pulmonary Vein Myocardium

We recorded the electrical activity from the myocardial layer of isolated mouse pulmonary veins with the glass microelectrode technique. Spontaneous electrical activity was observed in about half of the preparations, which appeared either as constant firing or as repetitive bursts. Noradrenaline enh...

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Bibliographic Details
Main Authors: Yayoi Tsuneoka (Author), Yuka Kobayashi (Author), Yoriko Honda (Author), Iyuki Namekata (Author), Hikaru Tanaka (Author)
Format: Book
Published: Elsevier, 2012-01-01T00:00:00Z.
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042 |a dc 
100 1 0 |a Yayoi Tsuneoka  |e author 
700 1 0 |a Yuka Kobayashi  |e author 
700 1 0 |a Yoriko Honda  |e author 
700 1 0 |a Iyuki Namekata  |e author 
700 1 0 |a Hikaru Tanaka  |e author 
245 0 0 |a Electrical Activity of the Mouse Pulmonary Vein Myocardium 
260 |b Elsevier,   |c 2012-01-01T00:00:00Z. 
500 |a 1347-8613 
500 |a 10.1254/jphs.12062SC 
520 |a We recorded the electrical activity from the myocardial layer of isolated mouse pulmonary veins with the glass microelectrode technique. Spontaneous electrical activity was observed in about half of the preparations, which appeared either as constant firing or as repetitive bursts. Noradrenaline enhanced, while acetylcholine reduced, automatic activity. The action potentials evoked in quiescent preparations showed a resting membrane potential less negative than the atria and an extremely rapid early repolarization followed by a late plateau. The present study revealed that the mouse pulmonary vein myocardium shows diverse electrical activity, which is influenced by autonomic neurotransmitters. Keywords:: pulmonary vein myocardium, automaticity, autonomic neurotransmitter 
546 |a EN 
690 |a Therapeutics. Pharmacology 
690 |a RM1-950 
655 7 |a article  |2 local 
786 0 |n Journal of Pharmacological Sciences, Vol 119, Iss 3, Pp 287-292 (2012) 
787 0 |n http://www.sciencedirect.com/science/article/pii/S1347861319304992 
787 0 |n https://doaj.org/toc/1347-8613 
856 4 1 |u https://doaj.org/article/4bb77e5875d3428dbed4d773b14d7a8b  |z Connect to this object online.